MEDIUM
9th CBSE
IMPORTANT
Earn 100

Water as ice has a cooling effect, whereas water as steam may cause severe burns, Explain, these observations.

Important Questions on Periodic Tests

MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 16 - Periodic Tests>Pre-Mid Term Tests>Q 9

Give reasons for the following:

Meristematic cells have prominent nucleus and dense cytoplasm, but they lack vacuole.

MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 16 - Periodic Tests>Pre-Mid Term Tests>Q 9

Give reasons for the following.

Intercellular spaces are absent in sclerenchymatous tissue.

EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 16 - Periodic Tests>Pre-Mid Term Tests>Q 1
When a particle moves with a uniform velocity, then :
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 16 - Periodic Tests>Pre-Mid Term Tests>Q 2
The boiling point of water is 100°C under normal atmospheric pressure. The value of this temperature on kelvin scale would be
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 16 - Periodic Tests>Pre-Mid Term Tests>Q 3
Xylem and phloem are called as complex tissue
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 16 - Periodic Tests>Pre-Mid Term Tests>Q 4
Name the dye used for preparing the temporary slide of plant cell. 
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 16 - Periodic Tests>Pre-Mid Term Tests>Q 5
Which characteristic of a gas is used in supplying oxygen cylinders to hospitals?
EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 16 - Periodic Tests>Pre-Mid Term Tests>Q 6
Why should we wear seat belts in a car?